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Cast of Zero Day – Full Netflix Cast and Key Roles

Freddie Oliver Carter Davies • 2026-03-26 • Reviewed by Oliver Bennett

Netflix’s political thriller Zero Day arrived on February 20, 2025, with a cast led by Robert De Niro in his first major television series role. The six-episode limited series centers on former President George Mullen investigating a devastating cyberattack that plunged the nation into crisis.

Created by Eric Newman, Noah Oppenheim, and journalist Michael Schmidt, the series features an ensemble including Jesse Plemons, Lizzy Caplan, and Angela Bassett. Directed by Lesli Linka Glatter, the production brings together veteran film actors and established television performers for a narrative exploring truth, conspiracy, and political power.

Cast of Zero Day Season 1

Platform
Netflix
Lead
Robert De Niro as George Mullen
Genre
Political Thriller
Format
2025 Mini-Series (6 Episodes)
  • Robert De Niro stars as a former President and Vietnam veteran leading the investigation into a catastrophic cyberattack
  • Jesse Plemons portrays Roger Carlson, a troubled political operative serving as the President’s “body man”
  • Lizzy Caplan plays Alexandra Mullen, the protagonist’s estranged daughter and Congressional representative
  • Angela Bassett appears as President Evelyn Mitchell, who appoints Mullen to chair the Zero Day Commission
  • Joan Allen and Connie Britton round out the political establishment as former First Lady and commission chief of staff
  • The ensemble represents a mix of Oscar winners, Emmy nominees, and critical darlings from film and television
  • Full cast details are available via Netflix’s official announcement and IMDb’s complete listing
Actor Role Notable Credits
Robert De Niro George Mullen The Godfather Part II, Taxi Driver, Raging Bull
Jesse Plemons Roger Carlson The Power of the Dog, Fargo, Breaking Bad
Lizzy Caplan Alexandra Mullen Masters of Sex, Castle Rock, Mean Girls
Joan Allen Sheila Mullen The Bourne Identity, The Crucible, Nixon
Connie Britton Valerie Whitesell Friday Night Lights, Nashville, The White Lotus
Angela Bassett President Evelyn Mitchell What’s Love Got to Do with It, 9-1-1, Black Panther
Dan Stevens Evan Green Downton Abbey, Legion, Beauty and the Beast
Matthew Modine Richard Dreyer Stranger Things, Full Metal Jacket, The Dark Knight Rises
Bill Camp Jeremy Lasch The Queen’s Gambit, Joker, 12 Years a Slave
McKinley Belcher III Carl Otieno Marriage Story, The Passage, Mercy Street

Cast of Zero Day Season 2

Current Status of Follow-Up Seasons

Netflix has not announced plans for a second season of Zero Day. The series was conceived and marketed as a limited miniseries with a definitive six-episode arc. All major cast members were contracted for the single-season narrative, which resolves the central cyberattack investigation.

Limited Series Format

Netflix lists Zero Day as a limited series, indicating the complete story unfolds across six episodes without planned continuation. Robert De Niro’s involvement was specifically for this contained narrative.

Potential for Future Installments

While the main storyline concludes within the six episodes, the anthology format remains common in political thriller television. Should Netflix order additional content, creator Eric Newman has established procedural elements through the Zero Day Commission that could theoretically investigate new threats with different personnel. However, no casting discussions or production timelines for continuation have materialized.

Zero Day TV Series

Creative Team and Production

Eric Newman, Noah Oppenheim, and Pulitzer Prize-winning journalist Michael Schmidt developed the series, drawing from contemporary political reporting. Lesli Linka Glatter directs all six episodes, bringing experience from Homeland and Mad Men to the paranoid thriller aesthetic. Executive producers include De Niro, Jonathan Glickman, and Peter Oberth alongside the creators.

Plot Premise

The narrative follows former President George Mullen as he chairs the Zero Day Commission investigating a catastrophic cyberattack that caused thousands of deaths. The investigation forces Mullen to navigate political conspiracies, family estrangement, and questions of national security while confronting his own past as a prosecutor and Vietnam veteran.

Zero Day Episodes

Episode Structure

The series comprises six episodes, all released simultaneously on February 20, 2025. Each episode runs approximately 45-60 minutes, following the commission’s investigation through witness testimony, political maneuvering, and clandestine operations.

Episode Availability

All six episodes of Zero Day premiered on Netflix without a weekly release schedule, allowing viewers to binge the complete investigation immediately upon release.

Recurring Cast and Guest Appearances

Beyond the principal ensemble, the series features Clark Gregg as Wall Street billionaire Robert Lyndon, Gaby Hoffmann as Silicon Valley CEO Monica Kidder, and Mark Ivanir as former Mossad operative Natan. These characters represent the intersecting worlds of finance, technology, and international intelligence that complicate the investigation.

Content Advisory

The series carries a TV-MA rating for violence, language, and mature themes related to cyberterrorism and political conspiracy.

When Was Zero Day Produced?

  1. : Development begins with Newman, Oppenheim, and Schmidt writing the pilot episode. Source
  2. : Netflix officially greenlights the series for production.
  3. : Initial casting announced including Lizzy Caplan, Jesse Plemons, Joan Allen, and Connie Britton.
  4. : Additional cast members Bill Camp, Matthew Modine, Dan Stevens, McKinley Belcher III, Gaby Hoffmann, Mark Ivanir, and Clark Gregg join the production.
  5. : Mozhan Navabi cast as Melissa Kornblau, the commission’s Communications Director.
  6. : Zero Day premieres on Netflix worldwide.

What Details Are Confirmed About the Cast?

Established Information Remaining Uncertainties
Complete main and recurring cast list verified by TV Guide and Netflix Potential for Season 2 casting remains unconfirmed
Robert De Niro’s role as George Mullen spans all six episodes Specific episode appearances for recurring cast members not detailed
Character roles and relationships defined in official synopses Viewership statistics and audience demographics not publicly released
Production completed in 2024 prior to February 2025 release; reception tracked via Rotten Tomatoes Specific filming locations and schedules largely undisclosed

How Does the Zero Day Cast Compare to Other Political Thrillers?

The ensemble assembled for Zero Day represents a strategic blend of cinematic prestige and television expertise. Robert De Niro’s participation signals Netflix’s continued investment in attracting major film talent to limited series formats, similar to recent trends in streaming prestige drama. The supporting cast balances character actors like Bill Camp and Jesse Plemons—known for intense, grounded performances—with established leads such as Angela Bassett and Connie Britton who bring authority to political roles.

This approach mirrors successful political thrillers that rely on ensemble depth rather than singular star power. Unlike younger-skewing ensemble casts such as the lineup in Conrad The Summer I Turned Pretty, this production emphasizes veteran performers with extensive dramatic credentials. The inclusion of journalists in the writers’ room—particularly Michael Schmidt’s investigative background—suggests the cast performed within a framework emphasizing procedural authenticity over melodrama.

What Sources Confirm the Cast Details?

“Zero Day is a six-episode American political thriller miniseries created by Eric Newman, Noah Oppenheim, and Michael Schmidt for Netflix, directed by Lesli Linka Glatter, and released on February 20, 2025.”

— Wikipedia, Zero Day (American TV series)

“The ensemble features Robert De Niro as former President George Mullen, joined by Jesse Plemons as Roger Carlson and Lizzy Caplan as Alexandra Mullen.”

Cosmopolitan, Zero Day Cast and Characters

Final Overview of the Zero Day Ensemble

Zero Day brings together an exceptional cast led by Robert De Niro’s portrayal of a former President navigating national crisis. The supporting performances from Jesse Plemons, Lizzy Caplan, Joan Allen, Connie Britton, and Angela Bassett create a dense political landscape across six episodes. For viewers interested in other Netflix ensemble productions, the Cast of Matilda the Musical (Film) offers another example of the platform’s diverse casting strategies. The complete first season streams exclusively on Netflix. For those interested in exploring more of her work, Фільми та серіали Синтії Еріво provides a comprehensive look at her filmography.

Frequently Asked Questions

Who plays the lead role in Zero Day?

Robert De Niro stars as George Mullen, the former President leading the cyberattack investigation.

Is Zero Day based on a true story?

No, the series is fictional, though creators including journalist Michael Schmidt drew from real-world political and cybersecurity reporting.

How many episodes are in Zero Day?

The limited series contains six episodes, all released on February 20, 2025.

Will there be a Season 2 of Zero Day?

Netflix has not announced plans for a second season; the series was produced as a complete miniseries.

Who created Zero Day?

Eric Newman, Noah Oppenheim, and Michael Schmidt created the series, with Lesli Linka Glatter directing all episodes.

What is the plot of Zero Day?

Former President George Mullen investigates a deadly zero-day cyberattack while navigating political conspiracies and family estrangement.

Is there a Zero Day movie?

No, Zero Day is exclusively a television miniseries available on Netflix, distinct from any film projects with similar titles.

Freddie Oliver Carter Davies

About the author

Freddie Oliver Carter Davies

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